Poster abstract details
New Planetary Nebulae with ISM interaction discovered with IPHAS
Abstract
The low surface brightness usually associated with nebulae mixing with the ISM has for a long time been a substantial obstacle in the observation and statistical study of these interactions. Thanks to the detection capability of new northern survey IPHAS (INT Photometric H$alpha$ Survey), in terms of depth and imaging resolution, we were able to visually detect/select tens of good candidate Planetary Nebulae interacting with the interstellar medium (PNe-ISM) at different stages of interaction following Wareing et al. (2007) classification.
A spectroscopic investigation was conducted with the San Pedro Martir 2.1m telescope (SPM) and we present the first results involving a proper classification (as the main difficulty is to visually separate PNe-ISM from other faint systems such as old HII regions, Supernovae SNRs or diffuse H$alpha$ structures) and analysis (density, line ratios...etc). The kinematical results obtained for the "brightest" PNe, using the high resolution spectrograph MEZCAL at SPM, are also presented in order to show a full picture of the various morphologies encountered.
This investigation is a first step in a more comprehensive study of PNe-ISM as more candidates are yet to be found in the IPHAS framework.
A spectroscopic investigation was conducted with the San Pedro Martir 2.1m telescope (SPM) and we present the first results involving a proper classification (as the main difficulty is to visually separate PNe-ISM from other faint systems such as old HII regions, Supernovae SNRs or diffuse H$alpha$ structures) and analysis (density, line ratios...etc). The kinematical results obtained for the "brightest" PNe, using the high resolution spectrograph MEZCAL at SPM, are also presented in order to show a full picture of the various morphologies encountered.
This investigation is a first step in a more comprehensive study of PNe-ISM as more candidates are yet to be found in the IPHAS framework.